Thomas f



(No Model.)

T. '15. OGONNOR. COIN-OPERATED BLOW TESTER.

i No. 395,578. Patented Jan. 1, 1889 INVENTOR, T Zzoms 1 05 0712 7 OATTORNEY.

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THOMAS F. OCONNOR, OF NEIV YORK, N. Y.

COIN OPERATED BLOW-TESTER.

SPECIFICATION forming part of Letters Patent No. 395,578, dated January1, 1889.

Application filed February 6, 1888. Serial No. 263,087. (No model.)

1'0 all whom it may concern;

- Be it known that I, THOMAS F. OCONNOR, a citizen of the United States,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Coin-Operated Blow Testers; and Ido hereby declare that the following is a full, clear, and exactdescription of my invention, such as will enable others skilled in theart to which it app ertains to make and use the same.

The invention has reference to apparatus for testing and registering theforce of a blow or of pressure, the object being to produce an apparatusof this kind which is normally locked so that it cannot be used, andwhich can only be put into condition for use by the insertion of a coinof a certain denomination.

The invention consists in the construction hereinafter described, andpointed out in the claim.

In the drawings, Figure 1 represents a vertical central section of thedevice along line a: a: of Fig. 2, showin the dial and pointer in dottedlines. F'i is an end view of the ap paratus or section along line :2 xof Fig. 1.

Referring to the drawings by letter, A represents the case or box. Itmay be made as ornamental as desired and may form part of a cabinet orbe built in with another strnct ure. It should,however,be provided witha dial or scale on the outside. \Vithin the box and extending to theoutside is a drive-rod, It is supported in suitable bearings in a frame.The inner end of the rod has fixed to it a disk or cross-head, B, andthe outer end carries a cushioned knob of peculiar con struc tion, whichwill be fully described.

C is a coil-spring encircling the rod, having one end secured to thecross-head and the other to the forward bearing of the rod. From thecross head or a bracket thereon extends a cord which passes over and issecured to a grooved pulley. The pulley is mounted on a stud fixed inthe front of the casing in the center of the dial and carries thepointer at its outer end. XVith this construction a movement of thedrive-rod will cause a corresponding movement of the pointer. The pulleyis mounted a little tight on its shaft, so that after it has beenrotated it will remain in the position to which it was carried and allowthe pointer to register. By means of the thumbnut a the hand may becarried back to zero. The mechanism for locking and unlocking the rod islocated at one end of the box, and consists of a tilting balanced lever,I), pivoted at Z). The weight b is just sufficient to tilt the rodupward and hold it in the transverse notch c in the driverod. The end ofthe lever opposite the weight stands under the outlet of the coin-chute(Z and over a cushioningspri11g,e. The opening to the chute is in thetop of the box. The drive-rod is provided with a cam or projection, f,for a purpose here inafter described.

To operate the apparatus a coinsay a fivecent pieceis dropped into theslot. It falls onto the end of the lever and carries it down against thespring awhere it rests, a small portion of the coin still remaining inthe chute. A blow may now be struck against the knob, or pressure may beput against it in any way, to drive the rod in. The force of the blow istaken up by the spring and is registered on the dial by the pointer.When the rod moves in, the cam f strikes against lever b and drives itdown onto the spring a. The downward motion of the lever releases thecoin and the rebound of the spring flips it off and it falls into anysuitable receptacle.

The knob is constructed so that the upholstered portion may be removedand renewed. The removable portion consists of a disk, m, on which thecushion is made. The fixed part consists of the disk n on the end of theshaft and the perforated disk 0 on the shaft, provided with threadedholes. Screws pass through these holes and into'disk m to hold thecushion in place.

Having now described my invention, whatI claim is- The driver-0dprovided with cam f and notch c, the spring 0, the lover I), and thespring 6, substantially as described.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

THOMAS F. OCONNOR.

\Vitnesses:

Aue'osrus MERRITT, G. H. SrooKBRIooE.

